Draft appliance for farm implements.



No. 852,746. PATENTED MAY 7, 1907.

' w. T. STEVIG. DRAFT APPLIANCE FOR FARM IMPLEMENTS.

APPLICATION FILED DEC. 28, 1904.

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PATENTED MAY '7, 1907.

W. T. STEVIG.

DRAFT APPLIANCE FOR FARM IMPLEMENTS.

APPLICATION FILED DEO.28,1904.

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DRAFT APPLIANCE FOR FARM IMPLEMENTS.

APPLICATION FILE]: D1:0.28,1904. I

PATENTED MAY '7, 1907.

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WILLIAM T. STEVTG, @F PULASKT, TUWA.

DRAFT APPLUANCE FQR FARM MWPLEEWENTSD no. sesame.

Specification of Letters Patent. I

Patented May 7, 1907.

Application filed December 28, 1904:. Serial No. 238.611.

To all whom it may concern:

Be it known that 1, WILLIAM T. Srnvie, a citizen of the United States, residing at Pulaski, in the county of Davis, State of Iowa, have invented certain new and useful Tmprovements in Draft Appliances for Farm implements and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in'the art to which it appertains to make and use the same.

This invention relates to draft appliances and more particularly to draft appliances for farm and other machinery, and has for its object to provide a draft appliance which may be used in connection with traction ongines, plows, harvesters and other farm implements and which may be shifted into dif ferent positions to produce difierent results.

A further object 18 to provide an appliance so arranged that the draw-barmay be shifted without interfering with the operationof the mechanism to which it is attached.

Other objects and advantages will be apparent from the following description, and it will be understood that modifications of the specific construction shown may be made andany suitable materials'may be used for the variousparts without departing from the spirit of the invention;

In the drawings forming a portion of this specification and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a rear elevation of a traction engine provided with the present invention. Fig. 2 is an end view of the guide, showing the lever mechanism. Fig. 3 is a transverse vertical section through the guide. Fig. tie a top plan view showing the invention applied to a sulky-plow'. Figs. 5 to 8 illustrate difieren t forms of the invention.

Referring now to the drawings, and more particularly to the first three figures thereof, there is shown a'traction engine 5 having the usual operators platform 6 at the rear. Secured to the under face of the platform there is a guide member 7 which consists of a rectangular body which extends transversely of the platform. The body is hollow and in its rearward face is provided with a central longitudinal slot 8 communicating with the interior of the body, the ends 9 of the body are provided with bearings 10 formed therethrou h, and journaled in these bearings there is a threaded shaft '11, the shaft is provided" with collars 12, which are engaged therewith outwardly of the ends 9, these collars resting against the ends to prevent longitudinal movement of the shaft. Slidably disposed within the guide member there is a block 13 having an eye 14 secured thereto and extending outwardly through the slot 8, and this block 13 is provided with a threaded passage 14 in which the threaded shaft 11 is engaged.

At one end the shaft 11 is provided with a hand wheel 15, by which the shaft may be revolved to move the block 13 longitudinally within the guide member. At its opposite end, the shaft is provided with a peripherally notched wheel 16 and mounted upon the end of the guide member for pivotal movement there is an upwardly extending lever 17.

Pivoted to the lever and extending beyond the opposite sides thereof are dogs 18 which lie normally in engagement with the teeth of .the notched wheel 16.

The lever 17 has a grip 19 at its upper end, and pivoted at opposite sides of the lever adjacent to the grip are triggers 20 which are connected with the dogs 18 by means of rods 21 and the arrangement is such that when the triggers are moved in a direction of the grip the dogs are raised out of engagement with the wheel 16. Pivoted to the upper end of the grip are loops 22 which may be engaged With the triggers to hold them with the dogs out of engagement with the wheel 16, it will be readily understood that in their normal positions, the trig? gers are held in spaced relation to the grip at their upper ends by the weights of the dogs.

it will be seen that provided one of the dogs is raised, the lever 17 may be operated to revolve the wheels 16 and shaft 11 and move the block 13, and it will be understood that when it is desired to .thus move the shaft, the grip 19 and one of the triggers 20 are grasped, the latter being moved to lie against the former, so that one of the dogs is raised, and the lever is free to operate. When it is desired to revolve the shaft in the opposite direction, the other trigger is operated, as will be readily understood.

In use, a chain or other attaching means carried by the apparatus to be connected with the traction engine is engaged with the eye 14, andwhen it is desired to turn a short corner or to back the vehicles, the shaft 11 may be revolved to move the block 13 into a position to obtain the best results as will be readily understood. The lever 17 extends upwardly at one side of the platform 6 and it will be seen that the shaft may be revolved v vided with the present invention which, as

will be readily seen does away with the use of the old fashion clevis.. In this form of the invention, one end of the shaft 11 is provided with a worm wheel 23 which is meshed with a worm carried by a shaft 24. This shaft has a similar connection with a third shaft 25 which is geared to a verticalshaft 26 having a hand wheel 27 at its top which lies within reach of an occupant of the oper'ators seat of the plow.

In the last four figures of the drawings, there are shown other forms of the invention which are applicable to either of the above mentioned machines as well as similar mechanism.

In Fig. 5, there is shown the guide member 7 provided with an interior rack 28 extending longitudinally of the side which lies opposite to that provided with the slot 8. The block 13 in this form is provided with a recess in its face adjacent to the rack which communicates with its passage 14:, this recess being indicated at 29 and journaled in this recess there is a gear wheel 30 which meshes with the rack 28, a shaft 31 is substituted for the shaft 11 and is provided with a worm 32 which meshes with the gear 30. The operation will be understood without further description.

In Fi 6 the guide member 7 is provided with a s 0t 33 which registers with theslot 8 and lying in this slot with its teeth directed outwardly there is a rack bar 34 which 'is carried by the block 13. Journaled in suitable bearings there is a gear 35 which is meshed with the rack bar 34 and which has meshed therewith the worm 36 of an operating shaft 37 mounted in brackets upon the face of the uide member.

In Fig. 7 there is shown a guide member 7 providedwith pulleys 38 journaled at itsends, and a third pulley 39 journaled upon its face opposite to its slotted side, engaged over the pulleys 38 there is a cable 40 which is looped around the pulley 39 and this cable passes into the guide member through openings in its ends and is secured at its ends to opposite ends of the block 13- A shaft 41 is mounted in suitable brackets 42 and is conseams nected by worm gears 43 with the pulley 39 sothat the pulley may be revolvedby the shaft to move the block, as will be readily understood.

In Fig. 8 there is shown aconstruction similar to that shown in Fig. 7. In this construction, the pulley 39 is omitted, and a shaft 44 is connected by means of a worm gear 45 with one of the pulleys 38 for operation thereof to move the block, as will be readily understood. I

It will: of course be understood that the second described form of the invention may be provided with the operating lever 17 instead of the shaft 26 and wheel 27 as illustrated.

What is claimed is z 1. A draft appliance com rising a guide member, an attaching bloc .slidably connected with the member, a revolubly mounted shaft, connections between the shaft and block for movement of the latter when the former is revolved, a notched wheel carried by the shaft, a pivoted lever, dogs carried by the lever and lying normally in engagement with the notched wheel, triggers pivoted to the lever and connected with the dogs for movement of the latter out of their normal position through movement of the tri gers, and means for holding the triggers the dogs out of engagement with the wheel.

2. A draft appliance comprising a guide member, an attaching block arranged for sliding movement with respect to the guide member, a revolving shaft connected with the block for movement of the latter when the shaft is revolved, a notched wheel carried by theishaft, a pivoted mounted lever, dogs plvoted to the lever anlyingnormally in engagement with the note ed wheel, triggers pivoted at one end to the lever'for-m'o vement of their opposite ends toward andaway from the lever, connections between the triggers and the dogs for movement of the latter into inoperative position when the triggers are moved in the direction of the lever, and loops pivotally connected with the lever and arrangedfor engagement of the triggersto hold thelatter with the dogs in inoperative position.

In testimony whereof, Iaffix my signature, in presence of two witnesses.

WILLIAM T. STEVIG.

Witnesses I ALVA HUNT, OLIVER E. TEN EYCK.l 

